Hey, easy on yourself!!
Why do so many grown-ups think they have to be perfect right out of the starting gate?? That's nuts.
By looking at your photo, anyone would be proud to wear a lovely, colorful hat like that. Knitting with variegated yarn is a total luck-of-the draw - you simply cannot predict where the colors will change in your work. [at least, that's been my experience.]
Be proud!!! You have completed a functional, warm, useful product made with pride and love. So you goofed.. so what. It's time to learn from your goof and... joyfully select your Next Project!!
Time out and enjoy your new talent.